/* Layout: page skeleton (header, bands, content, footer). Breakpoints: 48rem, 64rem,
   90rem, 120rem (768, 1024, 1440, 1920 px). */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.5rem 1rem;
  min-height: var(--header-height);
  padding: 0 14px 0 5px;
  background: var(--color-background);
  box-shadow: 0 0 3px 1px var(--color-shadow);
}

.site-main {
  padding-block: 1.5rem 2rem;
}

.section {
  margin-inline: var(--gutter);
}

.text-column {
  max-width: var(--measure);
  margin-inline: auto;
}

.site-footer {
  padding: 1.25rem var(--gutter) 0;
  border-top: 1px solid var(--color-border-strong);
  background: #ebebeb;
  color: var(--color-text);
  font-size: var(--text-small);
}

@media (min-width: 48rem) {
  .site-main {
    padding-block: 2rem 2.5rem;
  }
}

@media (min-width: 90rem) {
  :root {
    --gutter: 10%;
  }
}

@media (min-width: 120rem) {
  :root {
    --gutter: max(12%, calc((100% - 110rem) / 2));
  }

  .site-footer {
    font-size: 0.9375rem;
  }
}